The 2009 Seattle Energy Code (and Washington State Energy
Code), Section 1411.1, last sentence of the first paragraph, requires that
products covered under Tables 14-1A through 14-1G be listed in a nationally
recognized certification program. Tables 14-1A(3) and 14-1A(4) specify
minimum equipment efficiencies for VRF equipment and cite AHRI Standard 1230 as
the test procedure.
- Per the article below, the AHRI certification program
for variable refrigerant flow (VRF) equipment is now underway for products
covered under AHRI Standard 1230.
- Consequently, permit applications that include VRF
equipment need to demonstrate that the VRF equipment has AHRI certification
(e.g. VRF equipment efficiency needs to be determined in accordance with AHRI
Standard 1230 and certified in the AHRI Certification Program, etc.).
John Hogan
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September 20, 2011AHRI Launches 37th Certification Program: Variable Refrigerant Flow (VRF)
AHRI has launched a new certification program for Variable Refrigerant Flow Multi-Split Air-Conditioners and Heat Pumps (VRF). This is AHRI's 37th certification program.
The equipment in the VRF program are rated and tested in accordance with AHRI Standard 1230, Performance Rating of Variable Refrigerant Flow (VRF) Multi-Split Air-Conditioning and Heat Pump Equipment. Systems sized under 65MBH are currently certified to AHRI Standard 210/240.
"As VRFs are gaining popularity in the United States, launching this new certification program is timely," said Bill Tritsis, AHRI Vice President, Certification. "Having a VRF program will provide the assurance that manufacturers' performance ratings for the equipment have been independently verified, which will likely increase awareness of these products within the United States."
This certification program:
- Covers matched variable refrigerant flow multi-split air-conditioner and multi-split heat pump systems that comply with either the National Appliance Energy Conservation Act (NAECA) or the Energy Policy Act (EPACT), and use distributed refrigerant technology with cooling and heating capacities for outdoor units from 12,000 Btu/h [3508 W] to 300,000 Btu/h [87,692 W] and indoor units from 5,000 Btu/h [1,462 W] to 60,000 Btu/h [17,538 W]. Each indoor unit is designed to condition a single zone.
- Applies to variable refrigerant flow multi-split systems consisting of the following matched components: a) an outdoor unit with single or multiple compressors or variable capacity compressor or with a variable speed drive; b) indoor unit(s) that have a coil, air movement device intended for single zone air distribution, and a temperature sensing control; and c) a zone temperature control device.
- Covers VRF multi-split systems and heat recovery VRF multi-split systems covered in AHRI Standard 1230. Included are multi-split, matched system air-conditioners and heat pumps irrespective of their type of electric power source, or secondary fluid (e.g. air-to-air or water-to-air).
There are currently five participants in the program: Carrier, Daikin, LG Electronics, Mitsubishi, and Sanyo. Testing will be conducted at Intertek's testing facility in Plano, Tex. Performance data for certified products can be found in the AHRI Directory of Certified Product Performance ( www.ahridirectory.org).
Manufacturers interested in joining the VRF certification program may contact AHRI Certification Engineer Jon Lemmond. |
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